21To Benjamin Franklin from David Hartley, 10 July 1778 (Franklin Papers)
ALS : American Philosophical Society; transcript: Library of Congress Prisoner exchange was the...
22To Benjamin Franklin from David Hartley, 14 July 1778 (Franklin Papers)
ALS and incomplete copy: American Philosophical Society; transcript: Library of Congress I have...
23To Benjamin Franklin from David Hartley, 11 August 1778 (Franklin Papers)
AL (draft): M.D.A.F.H.H. Hartley Russell (1955) on deposit in the Berkshire County Record Office;...
24To Benjamin Franklin from David Hartley, 14 August 1778 (Franklin Papers)
ALS : American Philosophical Society I writ to you as long ago as the 14th of the last month to...
25To Benjamin Franklin from David Hartley: Two Letters, [4 October 1778] (Franklin Papers)
(I) ALS : American Philosophical Society; transcript: Library of Congress (II) ALS : American...
26To Benjamin Franklin from David Hartley, 9 October 1778 (Franklin Papers)
ALS : American Philosophical Society; incomplete copy: Library of Congress; transcript: Library...
27To Benjamin Franklin from David Hartley, 10 December 1778 (Franklin Papers)
ALS : American Philosophical Society; transcript: Library of Congress I recd two days ago notice...
28To Benjamin Franklin from David Hartley, 18 December 1778 (Franklin Papers)
ALS : American Philosophical Society; transcript: Library of Congress I hope the Exchange will...
29To Benjamin Franklin from David Hartley: Two Letters, 23 January 1779 (Franklin Papers)
(I) and (II) ALS : American Philosophical Society; transcript: Library of Congress I have...
30To Benjamin Franklin from David Hartley, 2 March 1779 (Franklin Papers)
ALS : American Philosophical Society; transcript: Library of Congress Yours of 22d of february...